Ok. So it's diff from a hammer drill. When I read it at first I was thinking that it vibrated like a hammer drill to help loosen the screw. But it's just like a impact wrench, just smaller I guess?

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1981 CJ5,258,T-176,D300,AMC 20,Dana 30,Trxus M/T 31x10.50, Rancho 5000's, GroundPounderFab front bumper, polyethylene gas tank, aluminum dash, AutoMeter gauges

What this country needs is unemployed politicians.